A lot of people are talking about long queues, damage nerfs, damage discrepancies between similar jobs, etc. The real problem is not mechanics nor number wise. It's an enjoyement problem. I really loved all of the stormblood activities and MSQs so far, cleared all the content and i'm happy with that. But I don't see a reason why I should keep playing as tank since the entire role is not enjoyable anymore (i'm not talking about damage nerf, i'm talking about the absence of rotation fillers, possibility to build up enmity and fill gauges at the same time, absence of satisfying skills to unleash on enemies).
Tanks (as every other role, see SCH) need to be happy while playing their job. If this problems and feedbacks are not looked into, will lead to major problems for the game, since both tanks and healers are essential roles. Now we have 50minutes+queues for dps, roles, but expect them go up over the course of the next months. There's no concrete reason why wait times would go down.